Skiving-machine.



H. G. GEE.

SKIVING MACHINE.

APPLICATION FILED SEPT. 23, 1012.

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Patented May 12, 1914.

H. C. GEE.

SKIVING MACHINE.

APPLIOATION FILED SEPT. 23, 1912.

1,096,424. Patented May 12, 1914.

2 BHEETS-SEEET l.

Fig. 1.

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HENRY CHARLES GEE, 0F LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY. A CORPORATION OF NEW JERSEY.

SKIVING-MACIIINE.

Specification of Letters Patent.

Application filed September 23, 1912.

Patented May 12, 1914.

Serial No. 721,878.

1/ b all whom, it may concern:

Be it known that I, HENRY C. GEE, a subject of the King of England, residing at Leicester, Leicestershire, England, have invented certain Improvements in Skiving Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reterencc characters on the drawings indicating like parts in the several figures.

This invention relates to machines for skiving leather such, for example, as is described and shown in British Patent No. 24,178 of 1907.

In the machine described and shown in said British patent, there is employed a circular dished knife mounted upon the upper end of a revolving shaft and a feed roll mounted on a substantially horizontal axis to feed the work to the said knife, this feed roll being capable of yielding angular movement during the operation of the ma chine to aceoi'nn'iodate itself to the work. With this construction it has been Found that during the skiving operation the loose end of the skiving occasionally gets wrapped around the axle of the teed roll and tends to stop the machine or to interfere with the progress of the work, and it is an object of this invention to overcome this defect.

Accordingly, a feature of the invention consists in the combination with a knife and a rotary teed roll which adjusts itself to the work by yielding angularly ot a nonrotatable guard which is supported by the axle of the said feed roll.

Another further feature of the invention comprises a guide for the guard which is adapted to prevent. lateral displacement of the feed roll and thus obviate any tendency of binding of the parts which might interfere, for example, with the angular movement of the roll.

These and other features of the invention including certain details of construction and combinations of parts will be described in connection with an illustrative machine and pointed out in the claims.

Referring now to the accompanying drawings :Fignre 1 is an end elevation, partly in section, of a portion of a machine of the type referred to in which the present invention is embodied, and Fig. 2 is a frontelevation, also partly in section, of a portion of this machine.

The machine in which the invention is shown as en'ibodied comprises a frame 1 having a bearing 2 in which is mounted so as to revolve a shaft 33 carrying a circular dished knife 41-. teed roll 5 is provided which is mounted in a manner similar to that described in the British patent above referred to, that is, its bearing (3 which has a supporting stem it; (see Fig. is movable about a pivot 7. The teed roll 5 is angularly movable with the bearing (3 about the pivot 7 so as to be capable of yielding during the operation oi. the machine to ac conunodate itself. to the work; and in order to permit this movement the teed roll is driven by a floating spindle 8, one end of which, as is shown in. Fig. 2, is connected by a universal coupling t) to an enlarged portion '10 of the hollow axle ll ot the feed roll, while the other end of the floating:- spindle 8 is similarly coni'iected with a slotted sleeve (not shown) :last upon a shaft which is driven from suitable gearing. A strut 1'2 acts yieldingtv upon the bearing (1 so as to raise the teed 1'()ll 5 toward a Presser 13.

The general structure of the machine will not be described turther except: to explain that a spring, not shown, urges the strut 1V2 upwardly and thereby tends to move the bearing ol the teed roll angularly in a counter-clockwise direction about the )ivot 7 whereby the stock of whatever thickness is gripped between the roll 5 and the prcsscr 13 and fed to the rotating knite -l-. all as fully described in the British patent above referred to.

For the purpose of protecting the axle of the feed roll the machine is provided with a guard which comprises a sleeve 1.4- loosely mounted upon an enlarged portion of the axle of the feed roll 5. The sleeve is provided with a wide circular head or flange portion 15 which covers or guards the face 16 of the said feed roll. It will be seen that the sleeve l-il extends a little distance beyond the coupling 9 so that the axle of: the feed roll is completely covered by the said guard. ,lonvenicntly the guard is provided with a split taro-part l'H'lSll 11.7 which is interposed between the sleeve 1st and the axle 11, the said bush being located between a shoulder on the axle 11 of the feed roll and the enlarged portion 10 of said axle, the bush being thus held against endwise movement.

which is adapted to engage with a station- 3 ary part of the machine to prevent rotation 1 thereof, and this member takes the form of a bolt 18 which is screwed into a boss formed on the guard or sleeve 1 1; and the bolt is arranged so that its end projects into a hole in the split bush, see Fig. l. t will be seen that the bolt 18, in addition to preventin the rotation of the guard 14, also secures it in position upon the bush and consequently endwise movement of the guard is prevent ed. The bolt is locked inposition by means of a lock nut 19. The end of the guard 14 adjacent to the portion 10 of the axle 11 of the feed roll extends into a vertical slot or guideway 20 in the machine frame which thus acts as guide to prevent any tendency to lateral displacement of the feed roll by its feeding action on the work or by any other means.

The operation of the machine is as fol lows: Power having been applied to the knife shaft 3 and to the floating spindle 8 the knife 4 and the feed roll 5 are caused to rotate. The stock is then fed to the machine from right to left as viewed in Fig. 1, the feed roll rotating in a counterclockwise direction as viewed in that figure. The bolt 18 will thus contact with the frame of the machine as shown to hold the guard 1a and the bush 17 stationary. At the same time the usual angular movement in a vertical direction about the pivot 7 will be permitted and the path of this movement will be controlled by the guideway 20.

Although the invention has been set forth in connection with a particular machine, it should be understood that the invention is not limited in the scope of its application to 4 the particular machine shown and described.

Having thus described my invention, What I claim and desire to secure by Letters Patent of the United States is l. The combination with a knife and an angularly movable feed roll to advance the stock to said knife, said feed roll having a rotatable axle connected therewith, of a guard supported by said axle, and means for preventing said guard from rotating.

The combination with a knife of an angularly movable feed roll to advance the stock to said knife, said feed roll having a rotatable axle connected therewith, of a guard supported by said axle, and means cooperating with the frame of the machine for preventing said guard from rotating.

3. The combination with a knife and an angularly movable feed roll to advance the stock to said knife, said feed roll having a rotatable axle connected therewith, of a non rotatable guard supported by said axle, there being a stationary guideway in the frame of the machine into which said guard extends.

The combination with an angularlymovable feed roll having a hollow axle, and a similarly movable stem located therein and serving as a support therefor, of a sleeve guard surrounding said axle, a bush interposed between said sleeve and axle, and

means for connecting said guard and bush. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY CHARLES GEE. YVitnesses Fannmncx WILLIAM NORTH, JOHN RICHARD LAW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

